docs: finish user guide updates (#11603)

* finished settings changes

* fix todos

* update titles

www/apps/user-guide/app/orders/payments/page.mdx

@@ -9,7 +9,7 @@ import {
 import { Table } from "docs-ui"
 
 export const metadata = {
-  title: `Manage Order Payments`,
+  title: `Manage Order Payments in Medusa Admin`,
 }
 
 # {metadata.title}
@@ -148,8 +148,6 @@ The link is then copied and you can share it with the customer to authorize the
 
 <Note title="Tip">
 
-{/* TODO add link to guide once available */}
-
-If the payment link doesn't start with a domain or has a domain that doesn't match your storefront, refer your technical team to [this guide](#) to set up the storefront domain.
+If the payment link doesn't start with a domain or has a domain that doesn't match your storefront, refer your technical team to [this guide](!resources!/references/medusa-config#storefronturl) to set up the storefront domain.
 
 </Note>